<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2900.2523" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>As I recall, the diode bypass for open
cells only worked on setups that used the new-fangled bridge amplifier
servo designs, i.e., anything using the old center tapped 4 wire designs
couldn't be saved with the diode bypass. I could have used it one day
on my old Skylark 56 (2nd RC plane ever for me) with a Kraft Series 70. It did a
nice spin-in that day, though it lost points for shoulder rolling into
it as that one cell coughed its last and all the servos crept over to their
final resting spot. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>EK Logictrol had one of the earliest bridge
amplifier servos. My instructor had one when I got into RC, I think it was
late 1969 and he was already using their little linear rack, 3 wire
servos. I can't remember the model number for them, but they were really
the cats a$$ back then. I could be wrong, but it might have been EK that
first did the diode bypass in the battery pack. The memory is a bit fuzzy on
that though.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Ed</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=bob@toprudder.com href="mailto:bob@toprudder.com">Bob Richards</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, January 24, 2005 3:25
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: any merit in running dual
battery packs ?</DIV>
<DIV><BR></DIV>
<DIV>Dean,</DIV>
<DIV> </DIV>
<DIV>I did not know Orbit did that. I know Proline did. I loved those
Competition single-stick radios.</DIV>
<DIV> </DIV>
<DIV>Bob R.<BR><BR><B><I>Dean Pappas <<A
href="mailto:d.pappas@kodeos.com">d.pappas@kodeos.com</A>></I></B>
wrote:</DIV>
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">
<META content="MSHTML 6.00.2800.1479" name=GENERATOR>
<DIV><SPAN class=746360619-24012005><FONT face=Arial color=#0000ff size=2>Hi
Ron,</FONT></SPAN></DIV>
<DIV><SPAN class=746360619-24012005><FONT face=Arial color=#0000ff
size=2>Nickel tends to fail short. That's actually good. Once upon a time,
Orbit sold its packs with diodes across each cell to protect against
failed-open cells.</FONT></SPAN></DIV>
<DIV><SPAN class=746360619-24012005><FONT face=Arial color=#0000ff
size=2> Try the Smart-Fly BATshare ... same bat time, same bat
channel!</FONT></SPAN></DIV>
<DIV><SPAN class=746360619-24012005><FONT face=Arial color=#0000ff size=2><A
href="http://www.smart-fly.com/Products/BatShare/batshare.htm">http://www.smart-fly.com/Products/BatShare/batshare.htm</A></FONT></SPAN></DIV>
<DIV><SPAN class=746360619-24012005><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=746360619-24012005><FONT face=Arial color=#0000ff
size=2>later,</FONT></SPAN></DIV>
<DIV><SPAN class=746360619-24012005> <FONT face=Arial
color=#0000ff size=2>Dean</FONT></SPAN></DIV>
<P><FONT face="Times New Roman">Dean Pappas</FONT> <BR><FONT
face="Times New Roman">Sr. Design Engineer</FONT> <BR><FONT
face="Times New Roman">Kodeos Communications</FONT> <BR><FONT
face="Times New Roman">111 Corporate Blvd.</FONT> <BR><FONT
face="Times New Roman">South Plainfield, N.J. 07080</FONT> <BR><FONT
face="Times New Roman">(908) 222-7817 phone</FONT> <BR><FONT
face="Times New Roman">(908) 222-2392 fax</FONT> <BR><FONT
face="Times New Roman">d.pappas@kodeos.com</FONT> </P>
<BLOCKQUOTE dir=ltr
style="MARGIN-RIGHT: 0px"> </BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>